US 11,911,184 B2
Bio-signal quality assessment apparatus and bio-signal quality assessment method
Dae Geun Jang, Yongin-si (KR); Ui Kun Kwon, Hwaseong-si (KR); and Seung Keun Yoon, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Sep. 8, 2022, as Appl. No. 17/940,678.
Application 17/940,678 is a continuation of application No. 16/200,141, filed on Nov. 26, 2018, granted, now 11,457,872.
Claims priority of application No. 10-2017-0164562 (KR), filed on Dec. 1, 2017; and application No. 10-2018-0076515 (KR), filed on Jul. 2, 2018.
Prior Publication US 2023/0000444 A1, Jan. 5, 2023
Int. Cl. A61B 5/00 (2006.01); G16H 40/63 (2018.01); A61B 5/0205 (2006.01); A61B 5/35 (2021.01); A61B 5/024 (2006.01); A61B 5/11 (2006.01); A61B 7/04 (2006.01)
CPC A61B 5/7221 (2013.01) [A61B 5/0205 (2013.01); A61B 5/7246 (2013.01); G16H 40/63 (2018.01); A61B 5/02405 (2013.01); A61B 5/02416 (2013.01); A61B 5/1102 (2013.01); A61B 5/35 (2021.01); A61B 7/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A bio-signal quality assessment apparatus, comprising:
a bio-signal obtainer configured to obtain a bio-signal; and
a processor configured to extract periodic signals from the obtained bio-signal, determine time variability of the bio-signal based on a difference between a time duration of each of the periodic signals and an average time duration of the periodic signals, and determine a signal quality index based on the time variability and a combination of two or more K-adjacent similarities having different K distance values between the extracted periodic signals which are apart from each other.